Bump stefanzweifel/git-auto-commit-action from 4 to 5 (#21)

Bumps [stefanzweifel/git-auto-commit-action](https://github.com/stefanzweifel/git-auto-commit-action) from 4 to 5.
- [Release notes](https://github.com/stefanzweifel/git-auto-commit-action/releases)
- [Changelog](https://github.com/stefanzweifel/git-auto-commit-action/blob/master/CHANGELOG.md)
- [Commits](stefanzweifel/git-auto-commit-action@v4...v5)

---
updated-dependencies:
- dependency-name: stefanzweifel/git-auto-commit-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/render-README.yaml

@@ -45,4 +45,4 @@ jobs:
           fs::file_copy("README.html", "index.html", overwrite = TRUE)
         shell: Rscript {0}
 
-      - uses: stefanzweifel/git-auto-commit-action@v4
+      - uses: stefanzweifel/git-auto-commit-action@v5